CN202918169U - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
- Publication number
- CN202918169U CN202918169U CN 201120518043 CN201120518043U CN202918169U CN 202918169 U CN202918169 U CN 202918169U CN 201120518043 CN201120518043 CN 201120518043 CN 201120518043 U CN201120518043 U CN 201120518043U CN 202918169 U CN202918169 U CN 202918169U
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- China
- Prior art keywords
- elastic piece
- voice coil
- lower flat
- coil motor
- flat elastic
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- Expired - Lifetime
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Abstract
The utility model provides a voice coil motor. The voice coil motor comprises a base, a shell, an upper flat spring plate, a lower flat spring plate, an isolation gasket, a movable device and a magnetic field generating device, wherein the movable device and the magnetic field generating device are arranged between the upper and lower flat spring plates; the movable device comprises a conducting coil and a coil carrier; the magnetic field generating device comprises an upper fixing frame, a lower fixing frame and a plurality of permanent magnets; two terminal blocks are arranged on one side of the lower flat spring plate; the lower flat spring plate is divided into two independent symmetrical parts along the central plane of the two terminal blocks; and the two symmetrical parts are connected by connection blocks and pre-dents are arranged at the junctions. The voice coil motor has the following beneficial effects that: as the lower flat spring plate of the voice coil motor is of an integrated structure, the connection blocks can be stripped by such sharp objects as tweezers along the dents on which the connection blocks are connected with the two parts of the flat spring plate without the help of other jigs after the lower flat spring plate is fixedly assembled with the conducting coil, thus improving the production efficiency; and meanwhile, the two parts of the lower flat spring plate are precisely positioned and are not easy to deform, thus improving the quality of the voice coil motor.
Description
Technical field
The present invention relates to a kind of voice coil motor, espespecially a kind of voice coil motor and packaging technology thereof for communication tool.
Background technology
Along with the raising of camera cell phone pixel, more and more higher requirement has been proposed also for the automatic focusing function of this mobile phone.Volume is little, high reliability is adopted by many manufacturers because voice coil motor (Voice Coil Motor is called for short VCM) has.But little just because of the voice coil motor volume, cause the assembling difficulty, production efficiency is lower, and the assembly failure rate is higher.So improve the structure of voice coil motor, it is imperative to improve packaging technology.
As shown in Figure 1, existing voice coil motor comprises that base, upper flat plate shell fragment, lower flat elastic piece 10 and 20. carriers of the carrier between two shell fragments, 20 centers are provided with screwed hole 30, be used for fixed lens, and be fixedly installed coil 40 on the outer peripheral face of carrier 20.Lower flat elastic piece 10 comprises separate two parts, i.e. the first shell fragment part 50 and the second shell fragment part 60, and both are connected with the both positive and negative polarity of power supply respectively, and link to each other with coil 40.As the plugged marquis, coil 40 and corresponding magnetite interaction so that carrier 20 is with respect to base motion, thereby drive camera motion, reach the purpose of focusing.The defective of this structure is that during assembling, the first shell fragment part 50 of lower flat elastic piece 10 needs to be connected with pedestal respectively and to be located with the second shell fragment part 60, links to each other with the both positive and negative polarity of power supply respectively again.Because two shell fragments of lower flat elastic piece 10 partly need to be made respectively and be assembled, and cause production efficiency lower, when assembling, can cause higher fraction defective.
Present published utility model 200720194118 provides a kind of voice coil motor and shell fragment thereof, and it improves lower flat elastic piece structure and carrier structure, reaches the simplification assembling procedure, the effect of enhancing productivity.The lower flat elastic piece of the voice coil motor that the disclosure file provides comprises the first shell fragment part and the second shell fragment part, and described shell fragment is formed in one, and is provided with the reservation cutting portion in the junction of described the first shell fragment part and the second shell fragment part; The carrier base of voice coil motor, correspondingly with described reservation cutting portion go out, be provided with recess; After the lower flat elastic piece of this voice coil motor and carrier are fixing, along reserving cutting portion lower flat elastic piece is divided into two parts again, need not to make respectively and assemble, enhance productivity.In this utility model, owing to need to recess be set at the counterpart of voice coil motor carrier, and need special location to increase the assembling difficulty during assembling; Lower flat elastic piece is being cut in the two-part operation, need to be by special fixture, complex procedures and have danger.
Summary of the invention
The present invention is conceived to problems of the prior art, is intended to improve the production efficiency that packaging technology improves voice coil motor by improving the structure of voice coil motor, reduces the assembly failure rate.
For achieving the above object, the technical solution used in the present invention is: a kind of voice coil motor, and it comprises: base, shell, upper flat plate shell fragment, lower flat elastic piece, spacer ring and at movable device and the magnetic field generation device between the flat elastic piece up and down; Its movable device comprises: conductive coil, coil supporter; Its magnetic field generation device comprises: fixed mount, a plurality of permanent magnets; Described upper flat plate shell fragment and the design of lower flat elastic piece shape match, and include housing, inside casing, organize connecting portion more; And the even number elastic part, each elastic part the string wave string shape such as be and be distributed in inside casing and housing between; Link together by elastic part two ends connecting portion between described housing and the inside casing.
Described many group connecting portions, this each group connecting portion is divided into two parts, and the first pontes two ends connect respectively an end of housing and an elastic part, and two ends, the second coupling part connect respectively the other end and the inside casing of same elastic part.
Described upper flat plate shell fragment and lower flat elastic piece all adopt the wet etching process one-shot forming, and wherein the upper flat plate shell fragment is the integral type structure, and lower flat elastic piece is split-type structural.
The split-type structural of described lower flat elastic piece is cut apart along center line, is divided into symmetrical the first shell fragment part and the second shell fragment part.
A wherein side of described lower flat elastic piece is provided with two splicing ears, and described splicing ear and lower flat elastic piece are one-body molded and symmetrical along center line.
Described lower flat elastic piece the first shell fragment part and the shell fragment of being connected partly connect by contiguous block.
Described contiguous block joins with described inside casing in the inside casing inboard of lower flat elastic piece, and is provided with pre-impression in the junction.
Described upper flat plate shell fragment and lower flat elastic piece all adopt wet etching process one-body molded, and the shell fragment semi-finished product behind the wet etching are the flat elastic piece bar that a plurality of flat elastic pieces and connected reservation cutting portion form; With the described lower flat elastic piece bar special-purpose bending jig of packing into, by tool described binding post bending is become 90 ° of angles with this time flat elastic piece plane; Described coil supporter is put on the support glue-dropping tool and is assembled with conductive coil; Putting into the movable device of assembling on the described support glue-dropping tool matches with the number of described lower flat elastic piece bar; Described lower flat elastic piece bar is become individual components along reserving the cutting portion incision; Contiguous block is removed along the pre-impression of lower dull and stereotyped bullet with iron tweezers or other sharp objects and to be made lower flat elastic piece become mutually insulation and independently two parts.
Beneficial effect of the present invention is embodied in: in invention, because the lower flat elastic piece of voice coil motor is integral type, after assembling with loop is fixing, what be connected with two shell fragment subitems along contiguous block peels off contiguous block with sharp objects such as tweezers with the impression place again, without by other tools, improved production efficiency.Simultaneously, make two parts accurate positioning of lower flat elastic piece, not yielding, improved the quality of voice coil motor.
Description of drawings
Fig. 1 is the decomposing schematic representation of existing voice coil motor;
Fig. 2 is the decomposing schematic representation of published utility model 200720194118 voice coil motors;
Fig. 3 is the voice coil motor explosive view that the present invention relates to;
Fig. 4 is lower flat elastic piece processing semi-finished product involved in the present invention;
Fig. 5 is the topology view of the lower flat elastic piece that arrives used herein.
1: shell; 2: spacer ring; 3: the upper flat plate shell fragment; 4: upper holder; 5: permanent magnet; 6: coil supporter; 7: conductive coil; 8: lower fixed frame; 9: lower flat elastic piece; 10: base; 11: the flat elastic piece bar; 91: housing; 92: inside casing; 93: elastic part; 94: contiguous block; 95: connecting portion; 96: binding post.
Embodiment
Such as the voice coil motor of Fig. 3 signal, it comprises: base (10), shell (1), upper flat plate shell fragment (3), lower flat elastic piece (9), spacer ring (2) and be positioned at up and down movable device and the magnetic field generation device between the flat elastic piece (9); Its movable device comprises: conductive coil (7), coil supporter (6); Its magnetic field generation device comprises: upper holder (4), lower fixed frame (8), a plurality of permanent magnets (5); It is characterized in that: described upper flat plate shell fragment (3) and the design of lower flat elastic piece (9) shape match, and include housing (91), inside casing (92), organize connecting portion (95) more; And a plurality of elastic part (93), this each elastic part (93) such as is at the string shape of string wave.
Many groups connecting portion (95) of described flat elastic piece, each group connecting portion (95) is divided into two parts, the first pontes two ends connect respectively an end of housing (91) and an elastic part (93), and two ends, the second coupling part connect respectively the other end and the inside casing (92) of same elastic part (93); A limit of described lower flat elastic piece (9) is provided with two binding posts (96); Described two binding posts (96) are one-body molded with this time flat elastic piece (9); Described lower flat elastic piece (9) is connected by contiguous block (94) between this two symmetric part, and is provided with pre-impression in the junction along being divided into mutually independently two symmetric parts in the central plane of described two binding posts (96).
Voice coil motor as shown in Figure 3, its number of assembling steps is:
1. process described upper flat plate shell fragment (3) and described lower flat elastic piece (9): by wet etching process, raw material are processed into the lower flat elastic piece bar (11) that is formed by a plurality of flat elastic pieces and connected reservation cutting portion; Described binding post (96) bending on described lower flat elastic piece (9) bar 11 is become 90 ° of angles with this time flat elastic piece (9) plane;
2. described conductive coil (7) cover is installed on the described coil supporter (6), quadriplanar point glue is to fix this conductive coil (7); Become lower flat elastic piece (9) another side gluing with 90 ° of angles with described binding post (96) at described lower flat elastic piece bar (11), glue together with coil supporter (6);
3. pack into successively in shell (1) behind spacer ring (2), upper flat plate shell fragment (3), upper holder (4), a plurality of permanent magnet (5), the lower fixed frame (8), the bonding of packing into is the movable device of flat elastic piece (9) down;
4. encapsulation base plate (10).
In invention, because the lower flat elastic piece (9) of voice coil motor is integral type, after assembling with conductive coil (7) is fixing, what partly be connected with two shell fragments along contiguous block (94) peels off contiguous block (94) with sharp objects such as tweezers with the impression place again, need not to have improved production efficiency by other tools.Simultaneously, make two parts accurate positioning of lower flat elastic piece (9), not yielding, improved the quality of voice coil motor.
Although more than describe by reference to the accompanying drawings structure of the present invention and packaging technology in detail; but foregoing description is also nonrestrictive; those skilled in the art can carry out suitable change to this voice coil motor and packaging technology thereof on the basis of above-mentioned disclosure; such as some concrete parts of change and material etc., but this also drops within protection scope of the present invention.
Claims (8)
1. voice coil motor, described voice coil motor comprises: base, shell, upper flat plate shell fragment, lower flat elastic piece, spacer ring and at movable device and the magnetic field generation device between the flat elastic piece up and down; Its movable device comprises: conductive coil, coil supporter; Its magnetic field generation device comprises: fixed mount, a plurality of permanent magnets; It is characterized in that: described upper flat plate shell fragment and the design of lower flat elastic piece shape match, and include housing, inside casing, organize connecting portion more; And the even number elastic part, each elastic part the string wave string shape such as be and be distributed in inside casing and housing between; Link together by elastic part two ends connecting portion between described housing and the inside casing.
2. a kind of voice coil motor according to claim 1, it is characterized in that: described many group connecting portions, this each group connecting portion is divided into two parts, the first pontes two ends connect respectively an end of housing and an elastic part, and two ends, the second coupling part connect respectively the other end and the inside casing of same elastic part.
3. a kind of voice coil motor according to claim 1, it is characterized in that: upper flat plate shell fragment and lower flat elastic piece all adopt the wet etching process one-shot forming, and wherein the upper flat plate shell fragment is the integral type structure, and lower flat elastic piece is split-type structural.
4. each described a kind of voice coil motor according to claim 1-3, it is characterized in that: the split-type structural of described lower flat elastic piece is cut apart along center line, is divided into symmetrical the first shell fragment part and the second shell fragment part.
5. a kind of voice coil motor according to claim 4, it is characterized in that: a wherein side of described lower flat elastic piece is provided with two splicing ears, and described splicing ear and lower flat elastic piece are one-body molded and symmetrical along center line.
6. a kind of voice coil motor according to claim 4 is characterized in that: described lower flat elastic piece the first shell fragment part and the shell fragment of being connected partly connect by contiguous block.
7. a kind of voice coil motor according to claim 6 is characterized in that: described contiguous block joins with described inside casing in that the inside casing of lower flat elastic piece is inboard, and is provided with pre-impression in the junction.
8. a kind of voice coil motor according to claim 1, it is characterized in that: described upper flat plate shell fragment and lower flat elastic piece all adopt wet etching process one-body molded, and the flat elastic piece semi-finished product behind the wet etching are the flat elastic piece bar that a plurality of flat elastic pieces and connected reservation cutting portion form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120518043 CN202918169U (en) | 2011-12-10 | 2011-12-10 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120518043 CN202918169U (en) | 2011-12-10 | 2011-12-10 | Voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202918169U true CN202918169U (en) | 2013-05-01 |
Family
ID=48166445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120518043 Expired - Lifetime CN202918169U (en) | 2011-12-10 | 2011-12-10 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202918169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993668A (en) * | 2015-06-26 | 2015-10-21 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference optical anti-vibration voice coil motor and manufacturing method therefor |
| CN108832758A (en) * | 2018-06-19 | 2018-11-16 | 信利光电股份有限公司 | A kind of flat elastic piece and voice coil motor |
-
2011
- 2011-12-10 CN CN 201120518043 patent/CN202918169U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993668A (en) * | 2015-06-26 | 2015-10-21 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference optical anti-vibration voice coil motor and manufacturing method therefor |
| CN108832758A (en) * | 2018-06-19 | 2018-11-16 | 信利光电股份有限公司 | A kind of flat elastic piece and voice coil motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG XUYE OPTOELECTRONICS TECHNOLOGY CO., LTD Free format text: FORMER NAME: DONGGUAN XUYE OPTOELECTRONIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 523000 Guangdong province Dongguan City Shipai town of Fulong Industrial Zone Second Road two Patentee after: Guangdong Xu Ye Optoelectronics Technology incorporated company Address before: 523000 Guangdong Province, Dongguan City Shipai town Fulong second industrial zone seven road Patentee before: Dongguan Xuye Photoelectric Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |